A + 15'. 40" B - 8'. 50" 15 . 30 8 . 50 15 . 35 8 . 50 -------- -------- Mean 15 . 35 Mean 8 . 50 B. Mean + 15 . 35 A. 4) 24 . 25 6 . 6.3 Dip. 3 . 50 Tabular. 2 . 16 Difference + Height of the eye, 15 feet, 3 inches. Parts of the horizon observed, N. by E. and S. by W. Depth of the sea, 27 feet. Barometer 29 . 68 inches. Thermometer } Air 84º } Sea 83º Latitude 38º . 50' north. Longitude 118º . 00' east. No. 59. OFF THE PEI-HO, YELLOW SEA. _August 10, 1816._--2. 15. P.M. Index uppermost. Instrument inverted A + 15'. 10" B - 7'. 50" 15 . 10 8 . 10 15 . 10 8 . 05 --------- --------- Mean 15 . 13.3 Mean 8 . 01.7 B. Mean + 15 . 13.3 A. --------- 4) 21 . 15 5 . 48.7 Dip. 3 . 50 Tabular. 1 . 59 Difference. --------- Height of the eye, 15 feet, 3 inches. Parts of the horizon observed, NW. by N. and SE. by S. Depth of the water, 27 feet. Barometer 29 . 68 inches. Thermometer { Air 84º { Sea 83º Latitude 38º. 50' north. Longitude 118º. 00' east. The vessels in all parts of the horizon have an inverted image under them; this is very considerable, some having about a third of the sail, others only the hull. No. 110. OFF THE CAPE. _July 28, 1817._--2.30. P.M.